{"id":"bauer2017unsolved","DOI":"10.1515/9781400884797","URL":"https://archive.org/details/unsolvedhistorym0000baue","type":"book","title":"Unsolved! The History and Mystery of the World's Greatest Ciphers from Ancient Egypt to Online Secret Societies","author":[{"given":"Craig P.","family":"Bauer"}],"issued":{"date-parts":[[2017]]},"year-text":"2017","container-title":"Princeton University Press (ISBN 978-0691167671)","catalog-key":"SRC0CRZAHS00E5Y"}